The Hopman Cup, organized by the ITF,[1] also is included but did not distribute ranking points.

[2] Prior to the season, the WTA announced usage of a shot clock at all Premier events.

[3] This is the complete schedule of events on the 2019 calendar, with player progression documented from the quarterfinals stage.

The players/nations are sorted by: The following players won their first main circuit title in singles, doubles, or mixed doubles: The following players defended a main circuit title in singles, doubles, or mixed doubles: The following players achieved their career high ranking in this season inside top 50 (in bold the players who entered the top 10 for the first time): These are the WTA rankings and yearly WTA Race rankings of the top 20 singles and doubles players at the current date of the 2019 season.

Following is a list of notable players (winners of a main tour title, and/or part of the WTA rankings top 100 [singles] or top 100 [doubles] for at least one week) who announced their retirement from professional tennis, became inactive (after not playing for more than 52 weeks), or were permanently banned from playing, during the 2019 season: Following are notable players who will come back after retirements during the 2019 WTA Tour season: Women's World Tennis circuit|1923]]